Finding the Fourth Proportional to 347,149.35, 478,873.18 and 201,938.80
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Solution
The fourth proportional to 347,149.35, 478,873.18 and 201,938.80 is: 278,563.32
Step by Step Solution
- Step 1: Write the proportion equation
347,149.35 : 478,873.18 = 201,938.80 : x - Step 2: Convert to fraction form
347,149.35/478,873.18 = 201,938.80/x - Step 3: Cross multiply
347,149.35x = 478,873.18 × 201,938.80 - Step 4: Simplify right side
347,149.35x = 96,703,075,321.38 - Step 5: Solve for x
x = 96,703,075,321.38/347,149.35 - Step 6: Final answer
x = 278,563.32
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.